公司新闻

PIR光学镜头解决方案-从3 m办公室到40 m工业应用

在
Aubor Optoelectronics, we develop and manufacture Passive Infrared (PIR) optical lenses that perform reliably across all environments — from 3 m office ceilings to 40 m high-bay industrial and outdoor installations.

我们的任务是将曾经被视为简单塑料部件的东西转变为
high-precision optical component.Every Aubor PIR lens is designed around three pillars:

1. 精确的菲涅尔几何
   用于可预测的红外能量分布。
   

2. 单点金刚石车削（SPDT）主模具
   用于亚微米表面精度。
   

3. 控制注射成型和聚合物选择
   以确保可重复的性能。
   

   

PIR传感的工作原理

PIR（无源红外）传感器通过测量来检测运动
changes in infrared radiation emitted by warm objects, especially the human body.When a person moves across the detection field, the PIR element receives alternating levels of infrared energy — creating a voltage signal that the circuit interprets as “motion.”

的
PIR lens plays a crucial role in this process.It doesn’t form a visual image; instead, it divides the infrared field into multiple zones and focuses radiation from each zone onto the pyroelectric detector.This design enables the sensor to differentiate between motion and static backgrounds, making the lens the optical “eye” of the entire system.

如果没有精确的镜头几何形状，传感器的视野会变得不均匀，导致
false triggers or missed detections — especially in high-mount installations where signal strength naturally decays with distance.

为各种高度量身定制的设计

不同的安装高度需要完全不同的光学行为：

• 3-5 m
  -办公室、家庭和走廊自动化的宽视野和软过渡。
  

• 6-12 m
  -商业照明和安全系统的平衡远程灵敏度。
  

• 20-40 m
  -仓库、隧道和户外监控的扩展焦点设计。
  

每个设计都经过模拟、优化和验证，以维护
energy symmetry and stable detection sensitivity at its intended range.

虽然有些品牌-比如
NIKO — claim 3 mm-thin designs that maintain full performance, we remain cautious. In practice, optical behavior follows physics: extreme compactness often compromises infrared uniformity. We believe precision isn’t about being thinner — it’s about being consistently accurate. 

为什么Aubor镜头表现不同

我们的SPDT加工模具实现：

• 槽形误差≤±2微米
  

• 表面粗糙度
  Ra < 10 nm

• 无边缘散射的平滑区域过渡
  

这种精度直接定义了红外能量是如何在探测区域收集和投射的。即使凹槽几何形状的微小偏差也会改变焦点，导致热释电元素的能量强度不均匀。SPDT母模通过创建完美可重复的表面曲线来消除这种不确定性，确保
each Fresnel zone contributes a balanced share of energy.

结果是
higher signal-to-noise ratio (SNR), more stable sensitivity, and better detection uniformity — particularly critical in long-distance (12 m to 40 m) installations where infrared energy loss is unavoidable.

通过SPDT，Aubor镜头不仅实现了机械精度，而且
optical control over energy and sensitivity, bridging the gap between polymer manufacturing and scientific instrumentation.

将可预测性融入每个镜头

从办公室到机场，从智能照明到工业安全，Aubor帮助全球客户实现随高度和复杂性而扩展的光学可靠性。因为在红外传感方面，
every meter — and every micron — matters.